Of all the elements essential to nutrition, oxygen is the only one required immediately after birth; as the child enters the world well stocked with all the others. Babies are not born hungry, as many people seem to think. Neither is their crying a proof of it, for, as we have observed, they have other very good reasons for crying; nor is their readiness to suck anything that comes in contact with the mouth, for they will behave in the same way while they are receiving an abundance of nourishment through the umbilical cord. Many hours pass before a newly born infant can possibly need food. Indeed, it could survive a week or longer without taking anything, by mouth, except water. The ability to suckle at birth merely indicates that the infant is prepared to utilize the mechanism which nature will now employ to sustain it. After the umbilical cord has been severed the blood vessels within it can serve no further purpose. Consequently the remnant of this structure attached to the child's abdomen begins to shrivel. Formerly the care of the stump was considered a trivial matter; when cleanliness was neglected decomposition caused more rapid separation than takes place under the treatment which it now receives. No annoyance should be felt because the cord hangs on a long time; indeed, such an experience means it has been given exceptionally good care. Separation rarely occurs before the end of a week. It may be deferred for two weeks, or even longer, if the stump has been kept perfectly clean. After the shriveled cord drops off, the skin around the navel contracts, leaving a small raw area which discharges a yellow fluid for two or three days before the healing is complete. MEDDLING.--In selecting a physician the patient will almost certainly have been guided by her confidence in his ability. It may seem strange, therefore, to insist that he be allowed to conduct the delivery as he thinks best. Nevertheless, suggestions from outsiders are so common, especially if the labor be at all prolonged, that it seems appropriate to warn patients to pay no attention to such advice. In the heat of excitement well-meaning relatives are sometimes inclined to interfere, and women who are not members of the family occasionally wish to discuss their experiences, irrelevant as they may be.